VMANOO Solar Outdoor Christmas String Lights 21ft 50 LED Fairy Flower Blossom Decorative Light for Indoor Garden Patio Party Xmas Tree Decorations 2-Pack (White) SOLAR POWERED -- LED solar lights use high-efficiency solar panels, which can convert solar energy into electric energy and storage in the built-in battery let the lights lit up. EASY TO USE 2 switches : Power switch (keep the power switch on ON all the time, the lights can keep it charging during the day and coming on at dusk), Mode switch (Flashing mode convert switch) FUNCTION--8 modes within the combination, in waves, sequential, Slo-Glo, chasing/flash, slow fade, twinkle/flash, and steady on. WATER RESISTANCE--Perfect for indoor and outdoor decorations. WIDE DECORATIVE OCCASIONS-- Party, wedding, home, window, bathroom, festival, Holiday, shows, restaurant, hotel, yard, garden, patios, commercial building, shopping center etc.